Coffee filter



FIG. 1 shows a view from above, in perspective, of the coffee filter according to the invention;

FIG. 2 shows a plan view from above of the coffee filter of FIG. 1;

FIGS. 3 and 4 show opposite side views in elevation of the coffee filter of FIG. 1;

FIG. 5 shows a plan view from below of the coffee filter of FIG. 1;

FIG. 6 is a sectional view taken along line 6—6 of FIG. 2; and,

FIG. 7 is a sectional view taken along line 7—7 of FIG. 2. 

The ornamental design for a coffee filter, as shown and described. 